Agegraphic Dark Energy with the Sign-Changeable Interaction in Non-Flat Universe
نویسندگان
چکیده
منابع مشابه
Interacting new agegraphic dark energy model and generalized second law of thermodynamics in non-flat universe
We consider the interacting new agegraphic dark energy model to investigate the validity of the generalized second law of thermodynamics in non-flat universe enclosed by the apparent horizon. We show that for this model in presence of interaction with the cold dark matter, the equation of state parameter can cross the phantom divide. We also present that for the selected model under thermal equ...
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We study the model for holographic dark energy in a spatially closed universe, generalizing the proposal in hep-th/0403127 for a flat universe. We provide independent arguments for the choice of the parameter c = 1 in the holographic dark energy model. On the one hand, c can not be less than 1, to avoid violating the second law of thermodynamics. On the other hand, observation suggests c be ver...
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A new dark energy model, named as “agegraphic dark energy”, has been proposed by one of us (R. G. Cai) in arXiv:0707.4049, based on the Károlyházy uncertainty relation, which arises from the quantum mechanics together with general relativity. In this note, we extend the original agegraphic dark energy model by including the interaction between the agegraphic dark energy and the pressureless (da...
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We employ the holographic model of interacting dark energy to obtain the equation of state for the holographic energy density in non-flat (closed) universe enclosed by the event horizon measured from the sphere of horizon named L.
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Recently a new model of dynamical dark energy, or time-varying Λ, was proposed by Cai [arXiv:0707.4049] by relating the energy density of quantum fluctuations in a Minkowski spacetime, namely ρq ≡ 3n2m2P /t, where n ∼ O(1) and t is the cosmic time, to the present day dark energy density. In this note, we show that the model can be adjusted to the present values of dark energy density parameter ...
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ژورنال
عنوان ژورنال: Communications in Theoretical Physics
سال: 2016
ISSN: 0253-6102
DOI: 10.1088/0253-6102/65/4/538